Sealing means for doors.



P. L. DAY.

SEALING MEANS FOB DOORS. APPLIOATION FILED JAN. 17, 191s.

Patented July-1, 191.3.

SEAL'ING Specification of Letters Patent.

rammen i.. DAY, orrmmneneri, Ammann MEANS ron noone.

PatentedJuiy1,1913.

Application filed January 17, 1913. Serial No. 742,743.

To all whom t may concern:

Be it known that L'PATRICK L'. DAY, a

siding at Birmingham, in the county of Jefferson and State of Alabama,have invented certain new and useful Improvements iii Sealing Means for Doors, of which the following is a specification.

My invention relates to a new and effective Ameans for sealing thev .joints between, the doors and frames and between the door frames and walls of retort coke ovens,`and especially doors of rectangular coke oven batteries in which the door frame inust mounted without the opening through which the coke isv forced out of the retort. The difficulty in sealing such coke oven doors lies in the fact that it is impractical to anchor the door frames to the brick walls of 2Q the oven because the inner walls are filled v Withpassages, and even if a bolt might be anchored in them the heat at times is so high that it would oxidize rapidly. The only practical way of, mounting the door vframe-s on the outer walls of the oven is by attaching them to the buck stays or similar l metallic frame work, and it will be evident that this will have a different co-eieielit of expansion and contraction from the brick .30 furnace and that it will necessitate the acking of the joint between the frame an the wall as well as between the door and the frame. I have found'that this packing is most effectively obtained by theA provisionvof adouble door frame comprising inner and outer frame sections which are spaced and are not rigidly connected to each other or to the oven wall and which therefore'are independent sections leaving a packing space bci 40 tween them extending outwardly fromthc oven wall. This packing space surrounds the oven door opening and is spaced from its outer marginal edges. When packing is seated in this space, the outer exposed edge 45 of thc packing strip receives an inward thrustfrom lthe inwardly moving oven door` which thus seals the joints between the frameand the door on one side and the oven wall on thc other side. The )aeking space should be continuous between t ie distinct and relatively inovablc door frame sections and l prefer to use the packing itself as the means for holding the inner nnattnehed frame section' in relative position to the outer frame section, and to this end the packing space is frame and j struck on a curve in a horizontal transverse j plane. citizen of the United States of America, re-

My invention comprises other details of construction and arrangement ofparts which iii their preferred embodiment are herein lafter more particularly described and claimed, reference being had to the accomi panying drawings, in which:-

Figure l is a horizontal cross-sectional view taken on the line g/e-g/ of Fig 2. Fig. 2 2 is a front elevation of the door and frame broken away. Fig. 3 is a vertical sectional view taken on the line -ai of Fig. 2. Fig. 4 is a detail view in side elevation of the door frame and door fastening means.

s Figs. 5 and Gare detail plan and sectional views of av spacing clamp for theI door frame sections to hold them in position to receive the packing.

Similar reference numerals refer to similar parts throughout the drawings.

In accordance with the requirements of law, I have illustrated only what I regard as the preferred embodiment of my invention which I have shown in connection with a bydoor is subjected to the most trying conditions, namely, alternate suction and pressure 'in the presence' of heat.

Ihe oven walls l are surrounded by spaced pairs of lbuck-stays 2 and. have the usual 'door openings 3, which are necessarily equal in size to the vertical cross section of the oven itself and left unobstructed by the dooi frames which would be likely to interfere with thev coke being ejected bodily through the oven door. The door 4, for closing these openings, may be of any suitablev construction having its inner facewhich projects into the door opening lined with a re brick and having about its marginal edge a flange 6, the outer edge of which is inturned and beveled to form a continuous lip 7 which is spaced several inches from the outer marginal edge of the door opening. At opposite points on the door l fasten airs of spaced straps 8 which overlap t e door are adapted to beengaged by thc door fastening means hereinafter described.

The door frame, according to my preferred construction, isformed in two parts, the outer frame 9 being rigidly fastened at top and bottom by angle irons 10 to the buck-stays of adjncentpairs,the angle irons being bolted or riveted to the buck-stays and product coke retort where the sealing ofthe i u to the door and serving to holdV the outer/ frame rigidly'in position relatively/ to the buck stays orfbracing framekwerk about the oven. For the purpose of reeetyingfthe bolts or rivets of the angle irons, th`e outer frame is provided with perforated' lugs 11, as seen in Fig.. 3. The `innner sidefwaflly 12 of the frame 9 eu'rves inwardly away from/'the door opening as indicated in the sectional View, Figs. 1 and 3i; The outer side walll of theiinner door frame 1-t,which,'Y Ait;,- .`wtill. be noted,l is free of rigidtdenneet-ion E"to lfthe outer frame or the oven, is cfur'espondingly curved and is provided with iin inner Hang 15 which lies "fiat against the wall 1 which#v is also engaged by thi. inner end'of the side 12 of the outer frame. The wallslQ/and 13 theI doorframe sections providebetween them a cgntinuous packing space 16v (Fig. G) which extends about the inner door frame is preferably curved iny'cro'ssl'section. Th outer? frame 9 is'provided .with integral outwardly projecting lugs ,f 17 which have theirouter ends 18 tapered ,to aj point and {whiclicnre spaced so that/each will vproject between a pair of straps 8: rlhelugs 17 are vertically slotted to receive ia tapered key 19 whiclispans a pair oflad'jacfent straps 8 and when driven home wedges them and -the door to which they are attached into position. It will be/noted that the continuous inturned lip 7 surrounding the door stands opposite the space 16 which receives the packing.: It therefore follows that when fpacking Q is introduced into this space 16, the li'p 'i' of thefglpor will be oressed against it to seal the door. Itcwill be noted also that this packing will extend continuously through the curved space Nijland will engage .19 the wall 1 which has lits irregular brick surface preferably cut away slightly to form a channel 21 which furnishes a smooth and uniform surface agai'nstcwhi'ch the inner end of the pat-,king is press-erh` The packing as thus applied will effectively seal the joint belive-en', fthe door frame and the furnace ujalls, which joint is the one most diflicult to piick and which is always more or less open, diie to the' difference in expansion and contraction'between"the metallic frame work and 'the ovenfproper. This-packing may be uit., miagavaifla'blc anaterial which is suitable for tllie-`particular.conditions unde'r which it ustfd ffl prefer inkrctorts andovenswhereisfji'ffinrjl'fittoils of (high beat exist to make this "ipac ing ol asbestos or similar lire proof ,packing matr-rial which will form a hard no1-jf' Aotnbustihln'packing. This packing may be 'forced intoythe space 16 in any suitable 6.o manner. 'lo facilitate tlrisopomtio'n, [provide clamps 22 which are adapted to seat in` growes"93fcut at opposite; points in the door fr1npe;se,c-tions 9 and 14,.l The ends ot' the' clip dycrhang the outer edges of the-door ftp fram@ sections and it has an intermediate y'sure to force the door a Loes/259 Af' spacing shoulder 21 which is inserted between the walls 12 and 13 and holds the/1 properly spaced. After the packing Q0 has beenfi-ra'mmedin, it will serve to lock the inner door frame'llt in-kposition as its outer eurted y'all 13 cannot move outwardly withoutfcrushing the packing interposed between it and the wall 12,/ of the outer frame which is/rigi/'dily fastened tothe buck-stays. As tlie pla'cking wears and basto-he replenished, this'may be'don from ltheoutside by less expensiie packing material .which l.may or niay notbe of the noli'fcombustible type. It will be noted that vthev ,application of presgainst the packing to seal it will at the same time urge the packing inwardlyl through the space 16 and, against the furnace oven wall, t-hus insuring a perfetpaeking. v

I do not desire to limit myself to anyA particular packing composition, nor to the particular construction of the door frame sections, and especially thev inner section thereof.

lVhat I claim as new ,and by Letters Patent, is 2-i A,

1. Means for sealing the doors of retort` coke ovens which comprfisiaI door frame' connected to the metallic lframe, work of the oven and held thereby against the outer oven wall at-,a point spaced from the outer marginal edge of the door opening, packing interposed between the wall of the furnace and the outer edge of saidr frame and extending continuously about the inner side 100 wall of said frame, a door, and means to swing said door into t-heopening in said frame and against said packing to force the latter against the wall of the oven and seal both the joints between the frame and the la; door and oven.

2. Means for sealing the doors of` retoltl coke ovens comprising tivo rectangular dQor frames adapted to set against the outer'oven wall beyond the outer marginal edge of the 110 oven door opening, the inner frame being free of rigid connection either to the outer frame or the oven, a continuous bodyjof packing interposed in the space between the two rectangular frames and extending in-'115 wardly to engage the oven wall, and an inwardly movable door adapted to-close the oven opening and to engage said packing, forcing it inwardly against the oven wall, substantially as described. 12o

In combination with a retort coke oven desire to secure ,having external metallic reinforcements, of

a means for sealing the door opening of the' oven.comprising a door, a mam door frame `which is disposed without the oven opening and against the outer wall of the oven, means to connect. said 'frame to the metalli(l reinforcements, an inner frame disconnected from the door opl-ning, and a [melting interposed in the space between said frames,

which packing extends continuously about the door opening and contacts with the outer wall of the oven and with the inner Wall of the door when the latter is in closed position.

. '4. A sealing means for retort coke ovens which have a door opening vand external buck stays, said se: Ing means comprising an inner and an outer door fanie, bothv of which are adapted to seat against the outer wall ot the oven and leave a continuous space bet-ween them extending from the oven 'all outwardly, a packing interposed in said space and adapted to engage the oven wall, and a door having a flange on its inner face which is adapted to project into the space between the door frames and to engage the packing tofforce it in 'ardly against the oven wall and seal the joints between the door frame and oven and between the door and the door frame, substantialtv as described. i

5. A sealingr means for retort coke. ovens comprising two door frames, an inner frame within an outer frame` external fastenings about the oven for holding,r the outer door frame .in position, and a packing interposed between the door frames and adapted to hold the inner door frame in position, substantially as described.

Means for Sealing,r the doors of retort coke ovens comprising' in combination with the do( and oven. of an inner and an outer door frame which set one within the other and both against the outer wall ot' the oven and leave between them a space extending inwardly to the -outer face ot' the oven wall and also extending continuously around the oven opening at a point spaced therefrom, the inner side face of the outer frame beingr luider-cut. and packing,interposed between the t'raines and adapte'dto engage the over-- hung wall. of the outer trame and serve as a retaining means for the inner f `ame which is left free ,of rigid connection to either the serving as the means for holding .the inner frame in position relativel)v to the'oiiter traine. Said since beine' ada )ted -to ierniit the packing to move bodily `througlfh it. toward the oven wall, means to hold the outer franie against the ovenv i\.all.and'a door to seal the oven opening which engages .and presses .the exposed face of saidfpaeking strip forcing it through said space' anil against the outside wall of the oven, silbstantiall as described.

S. A retort coke oven having; as a sealing in `ans for its door opening. a continuous j packing strip which engages' the .outer furnace wall at. a vpoint spaced from the opening and which extends continuous-lbv about the. opening, a door which engages the outer face ot the parking strip and forces its iinderface againstthe oven wall, two door frames whieliare Jfree of rigidconnection,

one. engaging the inner side wall of thepaekingstrip and the other theouter side wall ot' the packing strip, and means to hold the outer frame in position 'relatively to-the door opening in the. oven. substantiallf as described.

In testimony whereof l ailix niysignature in presence of two witnesses; 

